Orbital Materials

weights

open(Apache-2.0 ungated checkpoints loaded through the orb_models.forcefield.pretrained module)

data

open(MPTrj, Alexandria, OMat24, OMol25, and OPoly26 training datasets publicly released)

code

partial(inference, simulation wrappers, and a finetuning script

license

Apache-2.0(OSI)

Orb names a released public dataset behind every checkpoint and licenses the models under Apache-2.0, but the repository ships adaptation rather than a pretraining run, which keeps it off the top rungs.

• https://raw.githubusercontent.com/orbital-materials/orb-models/main/README.md recorded 2026-09-10

  States that Orb models are licensed under the Apache License, Version 2.0, loads checkpoints from orb_models.forcefield.pretrained with no gate, and documents finetune.py and a finetuning guide but no pretraining entry point.

• https://raw.githubusercontent.com/orbital-materials/orb-models/main/MODELS.md recorded 2026-09-10

  Names the training dataset for each released model: OMol25 and OPoly26 for OrbMol, OMat24 or MPA for v3, MPTraj and Alexandria for v2, each with a public link or reference.

• https://raw.githubusercontent.com/orbital-materials/orb-models/main/LICENSE recorded 2026-09-10

  Apache License 2.0 body with a 2024 Orbital Materials copyright, read directly rather than from the license endpoint.